Omalizumab is an asthma medication that can be used in patients with asthma, and patients who meet the drug indications have good therapeutic effects and a better safety profile with the use of this drug. The main effect of omalizumab is asthma, can improve the nasal symptoms of hay fever with severe asthma patients, enhance lung function, improve quality of life, reduce the number of asthma attacks. The safety of the drug is relatively good. It is recommended that omalizumab be used under the supervision of a medical professional. This medication is mainly used in adolescents and adults over 12 years of age to treat moderate to severe persistent allergic asthma. Headache, pain at the injection site, redness, swelling, itching and fever, and abdominal pain may occur after using the medicine. You also need to take a good rest during the medication, pay attention to cold and warmth, prevent cold, avoid contact with allergens, and keep the room ventilated. Drink plenty of warm boiled water, eat more fruits and vegetables and crude fiber, keep bowel movement, quit smoking and drinking, prohibit spicy stimulation, fried diet. During the use of omalizumab, if you need to use other drugs at the same time, be sure to use them separately, to avoid antagonism between drugs, affecting or reducing the therapeutic effect of the drug, while increasing the toxic side effects of the drug. Please follow the doctor’s instructions to use this drug in order to obtain satisfactory therapeutic effects.